US2776689A - Hammer with detachable facings - Google Patents

Description

Jan. 8, 1957 J. 5. FALZONE 2,776,689

HAMMER WITH DETACHABLE FACINGS Filed Dec. 14, 1954 LEA IN VEN TOR.

JOSE/OH 5,51 LZONE HAMMER WITH DETACHABLE FACINGS Joseph S. Falzone, Bethpage, N. Y. Application December 14, 1954, Serial No. 475,045

2 Claims. (Cl. 14529) This invention relates to hammers, and, more particularly, to hammers having detachable facing members.

The present invention provides a hammer, the head member of which has an insert or bore into which a detachable facing member may be screwed or otherwise connected. The invention also incorporates a spring member adapted to bear upon the facing member to minimize the shock effects on the threads and to act as a lock washer means to prevent the facing member from loosening.

In the various types of work wherein hammers are used, it is quite often necessary to use different hammers, since different facings are required for the various types of work, for instance, hammers are used with lead head members, brass facings, rubber facings and plastic facings, as well as the conventional steel facings. These different facings are used for different types of work, for instance, met-a1 workers use various facings for hammering out metal objects, automobile workers for removing dents and creases in automobiles, etc. Even the conventional carpenters United States Patent hammer has special facings of variousarcs of curvature for various types of work. Therefore, in addition to the various materials used in the hammers, various shapes are also required at various times for different applications, for instance, a rounded shape or a shape having a slight curvature. Also, the facings wear out due to the repeatedly sharp impacts of hammering and tend to wear or chip so that they have to be replaced periodically.

The present invention permits replacement of the facings in a relatively inexpensive manner without discarding the entire hammer. The invention also provides various shapes and materials of facings which may be mounted on astandard handle and head member, thereby elimihating the need for a mechanic or artisan to keep on hand or carry about several different hammers for difierent types of work.

Accordingly, a principal object of the invention is to provide new and improved hammer means.

Another object of the invention is to provide new and improved hammer means with detachable facings of dif ferent materials.

Another object of the invention is to provide new and improved hammer means with detachable facings of diiferent materials and different shapes.

Another object of the invention is to provide a hammer comprising a handle member, a head member having a bore therein and a detachable facing member connected to said head member.

Another object of theinvention is to provide a hammer comprising a handle member, a head member having a bore therein, a spring mounted in said bore and a detachable facing also mounted in said bore and means for tightening the facing member to said head member.

These and other objects of the invention will be apparent from the following specification and drawings of which:

Figure 1 is a side view of an embodiment of the invention, partly in section.

Figure 2 is a partial sectional view of a different facing for the embodiment of Figure 1.

Referring now to the figures, Figure 1 shows a hammer comprising a handle member 1, a head member 2 mounted on the handle in the conventional manner, the head mem- 2,776,689 Patented Jan. 8, 1957 her having a bore or shaftway 3 cut in it perpendicular to the position of the handle member. The bore may be of uniform size or may be smaller at the interior end as shown and is also partially threaded at its lower end 4. A spring 5 is adapted to be mounted in the upper end of the bore 3 and a detachable facing member 6 having a threaded shaft portion 7 is adapted to be screwed into the threaded portion 4 of the bore in the head member.

The apparatus is assembled by inserting the spring in the upper portion of the bore 3 and screwing the head member into the upper portion 4 of the bore. The size of the spring is chosen so that when the facing member is fully inserted, the spring will be under considerable compression and will tend to hold the threads of the facing member into secure contact with those of the head member. The spring will also tend to absorb the emphatic shocks and protect the thread members from fracturing or wearing. The spring 5 will also have a lock washer eifect in that it will keep the facing member from becoming loose.

Means are preferably provided on the facing member for tightening tighter than can be done by hand for those preferring not to tighten the facing member on with a wrench, since this might scratch the sides of the facing member. Such means for tightening is shown as an indentation 10 in which a pin or Allen wrench may be inserted for the purpose of providing leverage in tightening the facing member onto the head member. The facing member may be of any desired material, such as lead, brass, hard rubber, soft rubber, plastic, or any other material suitable for a particular application. Also, the head member is not limited to any particular shape, but may have various curvatures of are incorporated in the facing thereof, or may be circular or elliptical in cross-section de pending upon the particular applications. If light material facings are used, such as aluminum or certain plastics, it may be desirable to add Weight inside the facing memher so that the various members will have approximately the same weight for the purpose of keeping the hammer in balance. Where the facing members are made of metal, they may be made in conventional fashion by turning down and threading the portion 7 and some plastic and hard rubber may be fabricated in this manner. If softer materials are used, it is preferable to use a stud member 11, Figure 2, having a headed portion and then to mold or otherwise mount the facing 12 upon the headed stud.

I claim: 7

1. A hammer comprising a handle member, a head member mounted on said handle member, said head member having a partially threaded bore therein perpendicular to said handle member said bore having an unthreaded extension portion, a spring mounted along the axis of said head member in said bore extension portion and a facing member having a threaded portion threaded into said bore and bearing against said spring.

2. A hand tool comprising a handle member, a head member mounted on said handle member, said head member having a partially threaded bore therein perpendicular to said handle member, a spring mounted along the axis of said headmember in said bore and a facing member having a threaded portion threaded into said bore and bearing against said spring.

References Cited in the file of this patent UNITED STATES PATENTS 902,436 McFarland Oct. 27, 1908 974,021 Blake Oct. 25, 1910 1,118,010 Huhn Nov. 24, 1914 1,781,344 Salazar Nov. 11, 1930 FOREIGN PATENTS 59,996 Norway Oct. 24, 1938 897,665 France May 30, 1944

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